1. Material problem: socks should be made of pure cotton. There is a rigid requirement here: the natural fiber content should be more than 55% to effectively prevent foot sweat.

2. Elasticity: The elasticity of socks is better, and the elasticity of socks has better slip resistance. Generally speaking, inferior socks will be deformed after washing, which may cause foot damage during exercise.

3. Thickness: The thickness of socks can be purchased as needed. For example, people who exercise a lot are suitable for thinner socks, because thinner socks will have better breathability; if the ankle has been injured, try to choose thick socks.